windowsbatchtokenmaker.java

具有不同语法高亮的编辑器实例

/*
 * 03/07/2004
 *
 * WindowsBatchTokenMaker.java - Scanner for Windows batch files.
 * Copyright (C) 2004 Robert Futrell
 * [e-mail]
 * www.website.com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package org.fife.ui.rsyntaxtextarea.modes;

import javax.swing.text.Segment;

import org.fife.ui.rsyntaxtextarea.*;


/**
 * A token maker that turns text into a linked list of
 * <code>Token</code>s for syntax highlighting Microsoft
 * Windows batch files.
 *
 * @author Robert Futrell
 * @version 0.1
 */
public class WindowsBatchTokenMaker extends AbstractTokenMaker {

	protected final String operators = "@:*<>=?";

	private int currentTokenStart;
	private int currentTokenType;

	private boolean bracketVariable;			// Whether a variable is of the format %{...}


/*****************************************************************************/


	/**
	 * Constructor.
	 */
	public WindowsBatchTokenMaker() {
		super();	// Initializes tokensToHighlight.
	}


/*****************************************************************************/


	/**
	 * Checks the token to give it the exact ID it deserves before
	 * being passed up to the super method.
	 *
	 * @param segment <code>Segment</code> to get text from.
	 * @param start Start offset in <code>segment</code> of token.
	 * @param end End offset in <code>segment</code> of token.
	 * @param tokenType The token's type.
	 * @param startOffset The offset in the document at which the token occurs.
	 */
	public void addToken(Segment segment, int start, int end, int tokenType, int startOffset) {

		switch (tokenType) {
			// Since reserved words, functions, and data types are all passed
			// into here as "identifiers," we have to see what the token
			// really is...
			case Token.IDENTIFIER:
				int value = wordsToHighlight.get(segment, start,end);
				if (value!=-1)
					tokenType = value;
				break;
			case Token.WHITESPACE:
			case Token.SEPARATOR:
			case Token.OPERATOR:
			case Token.ERROR_STRING_DOUBLE:
			case Token.LITERAL_STRING_DOUBLE_QUOTE:
			case Token.COMMENT_EOL:
			case Token.VARIABLE:
				break;

			default:
				System.err.println("Unknown tokenType in WindowsBatchTokenMaker.addToken: '" + tokenType + "'");
				System.exit(0);

		}

		super.addToken(segment, start, end, tokenType, startOffset);

	}


/*****************************************************************************/


	/**
	 * Returns the words to highlight for Windows batch files.
	 *
	 * @return A <code>TokenMap</code> containing the words to highlight for
	 *         Windows batch files.
	 * @see org.fife.ui.rsyntaxtextarea.AbstractTokenMaker#getWordsToHighlight
	 */
	public TokenMap getWordsToHighlight() {

		TokenMap tokenMap = new TokenMap(true); // Ignore case.

		int reservedWord = Token.RESERVED_WORD;
		tokenMap.put("call",			reservedWord);
		tokenMap.put("choice",		reservedWord);
		tokenMap.put("cls",			reservedWord);
		tokenMap.put("echo",			reservedWord);
		tokenMap.put("exit",			reservedWord);
		tokenMap.put("goto",			reservedWord);
		tokenMap.put("if",			reservedWord);
		tokenMap.put("pause",		reservedWord);
		tokenMap.put("shift",		reservedWord);
		tokenMap.put("start",		reservedWord);

		tokenMap.put("ansi.sys",		reservedWord);
		tokenMap.put("append",		reservedWord);
		tokenMap.put("arp",			reservedWord);
		tokenMap.put("assign",		reservedWord);
		tokenMap.put("assoc",		reservedWord);
		tokenMap.put("at",			reservedWord);
		tokenMap.put("attrib",		reservedWord);
		tokenMap.put("break",		reservedWord);
		tokenMap.put("cacls",		reservedWord);
		tokenMap.put("call",			reservedWord);
		tokenMap.put("cd",			reservedWord);
		tokenMap.put("chcp",			reservedWord);
		tokenMap.put("chdir",		reservedWord);
		tokenMap.put("chkdsk",		reservedWord);
		tokenMap.put("chknfts",		reservedWord);
		tokenMap.put("choice",		reservedWord);
		tokenMap.put("cls",			reservedWord);
		tokenMap.put("cmd",			reservedWord);
		tokenMap.put("color",		reservedWord);
		tokenMap.put("comp",			reservedWord);
		tokenMap.put("compact",		reservedWord);
		tokenMap.put("control",		reservedWord);
		tokenMap.put("convert",		reservedWord);
		tokenMap.put("copy",			reservedWord);
		tokenMap.put("ctty",			reservedWord);
		tokenMap.put("date",			reservedWord);
		tokenMap.put("debug",		reservedWord);
		tokenMap.put("defrag",		reservedWord);
		tokenMap.put("del",			reservedWord);
		tokenMap.put("deltree",		reservedWord);
		tokenMap.put("dir",			reservedWord);
		tokenMap.put("diskcomp",		reservedWord);
		tokenMap.put("diskcopy",		reservedWord);
		tokenMap.put("doskey",		reservedWord);
		tokenMap.put("dosshell",		reservedWord);
		tokenMap.put("drivparm",		reservedWord);
		tokenMap.put("echo",			reservedWord);
		tokenMap.put("edit",			reservedWord);
		tokenMap.put("edlin",		reservedWord);
		tokenMap.put("emm386",		reservedWord);
		tokenMap.put("erase",		reservedWord);
		tokenMap.put("exist",		reservedWord);
		tokenMap.put("exit",			reservedWord);
		tokenMap.put("expand",		reservedWord);
		tokenMap.put("extract",		reservedWord);
		tokenMap.put("fasthelp",		reservedWord);
		tokenMap.put("fc",			reservedWord);
		tokenMap.put("fdisk",		reservedWord);
		tokenMap.put("find",			reservedWord);
		tokenMap.put("for",			reservedWord);
		tokenMap.put("format",		reservedWord);
		tokenMap.put("ftp",			reservedWord);
		tokenMap.put("graftabl",		reservedWord);
		tokenMap.put("help",			reservedWord);
		tokenMap.put("ifshlp.sys",	reservedWord);
		tokenMap.put("ipconfig",		reservedWord);
		tokenMap.put("keyb",			reservedWord);
		tokenMap.put("label",		reservedWord);
		tokenMap.put("lh",			reservedWord);
		tokenMap.put("loadfix",		reservedWord);
		tokenMap.put("loadhigh",		reservedWord);
		tokenMap.put("lock",			reservedWord);
		tokenMap.put("md",			reservedWord);
		tokenMap.put("mem",			reservedWord);
		tokenMap.put("mkdir",		reservedWord);
		tokenMap.put("mode",			reservedWord);
		tokenMap.put("more",			reservedWord);
		tokenMap.put("move",			reservedWord);
		tokenMap.put("msav",			reservedWord);
		tokenMap.put("msd",			reservedWord);
		tokenMap.put("mscdex",		reservedWord);
		tokenMap.put("nbtstat",		reservedWord);
		tokenMap.put("net",			reservedWord);
		tokenMap.put("netstat",		reservedWord);
		tokenMap.put("nlsfunc",		reservedWord);
		tokenMap.put("not",			reservedWord);
		tokenMap.put("nslookup",		reservedWord);
		tokenMap.put("path",			reservedWord);
		tokenMap.put("pathping",		reservedWord);
		tokenMap.put("pause",		reservedWord);
		tokenMap.put("ping",			reservedWord);
		tokenMap.put("power",		reservedWord);
		tokenMap.put("print",		reservedWord);
		tokenMap.put("prompt",		reservedWord);
		tokenMap.put("qbasic",		reservedWord);
		tokenMap.put("rd",			reservedWord);
		tokenMap.put("ren",			reservedWord);
		tokenMap.put("rename",		reservedWord);
		tokenMap.put("rmdir",		reservedWord);
		tokenMap.put("route",		reservedWord);
		tokenMap.put("scandisk",		reservedWord);
		tokenMap.put("scandreg",		reservedWord);
		tokenMap.put("set",			reservedWord);
		tokenMap.put("setver",		reservedWord);
		tokenMap.put("share",		reservedWord);
		tokenMap.put("shutdown",		reservedWord);
		tokenMap.put("smartdrv",		reservedWord);
		tokenMap.put("sort",			reservedWord);
		tokenMap.put("subset",		reservedWord);
		tokenMap.put("switches",		reservedWord);
		tokenMap.put("sys",			reservedWord);
		tokenMap.put("time",			reservedWord);
		tokenMap.put("tracert",		reservedWord);
		tokenMap.put("tree",			reservedWord);
		tokenMap.put("type",			reservedWord);
		tokenMap.put("undelete",		reservedWord);
		tokenMap.put("unformat",		reservedWord);
		tokenMap.put("unlock",		reservedWord);
		tokenMap.put("ver",			reservedWord);
		tokenMap.put("verify",		reservedWord);
		tokenMap.put("vol",			reservedWord);
		tokenMap.put("xcopy",		reservedWord);

		return tokenMap;

	}


/*****************************************************************************/


	/**
	 * Returns a list of tokens representing the given text.
	 *
	 * @param text The text to break into tokens.
	 * @param startTokenType The token with which to start tokenizing.
	 * @param startOffset The offset at which the line of tokens begins.
	 * @return A linked list of tokens representing <code>text</code>.
	 */
	public Token getTokenList(Segment text, int startTokenType, final int startOffset) {

		resetTokenList();

		char[] array = text.array;
		int offset = text.offset;
		int count = text.count;
		int end = offset + count;

		// See, when we find a token, its starting position is always of the form:
		// 'startOffset + (currentTokenStart-offset)'; but since startOffset and
		// offset are constant, tokens' starting positions become:
		// 'newStartOffset+currentTokenStart' for one less subraction operation.
		int newStartOffset = startOffset - offset;

		currentTokenStart = offset;
		currentTokenType  = startTokenType;
		boolean numContainsExponent = false;
		boolean numContainsEndCharacter = false;

beginning:
		for (int i=offset; i<end; i++) {

			char c = array[i];

			switch (currentTokenType) {

				case Token.NULL:

					currentTokenStart = i;	// Starting a new token here.

					switch (c) {